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Author SHA1 Message Date
Preston Baxter a2949ed0e7 Humble beginings 2024-07-08 22:12:34 -05:00
Linus Torvalds 256abd8e55 Linux 6.10-rc7 2024-07-07 14:23:46 -07:00
Linus Torvalds 5a4bd506dd A set of clk fixes for the Qualcomm, Mediatek, and Allwinner drivers:
- Fix the Qualcomm Stromer Plus PLL set_rate() clk_op to explicitly set
    the alpha enable bit and not set bits that don't exist
  - Mark Qualcomm IPQ9574 crypto clks as voted to avoid stuck clk
    warnings
  - Fix the parent of some PLLs on Qualcomm sm6530 so their rate is
    correct
  - Fix the min/max rate clamping logic in the Allwinner driver that got
    broken in v6.9
  - Limit runtime PM enabling in the Mediatek driver to only
    mt8183-mfgcfg so that system wide resume doesn't break on other
    Mediatek SoCs
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A set of clk fixes for the Qualcomm, Mediatek, and Allwinner drivers:

   - Fix the Qualcomm Stromer Plus PLL set_rate() clk_op to explicitly
     set the alpha enable bit and not set bits that don't exist

   - Mark Qualcomm IPQ9574 crypto clks as voted to avoid stuck clk
     warnings

   - Fix the parent of some PLLs on Qualcomm sm6530 so their rate is
     correct

   - Fix the min/max rate clamping logic in the Allwinner driver that
     got broken in v6.9

   - Limit runtime PM enabling in the Mediatek driver to only
     mt8183-mfgcfg so that system wide resume doesn't break on other
     Mediatek SoCs"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: mediatek: mt8183: Only enable runtime PM on mt8183-mfgcfg
  clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common
  clk: qcom: gcc-ipq9574: Add BRANCH_HALT_VOTED flag
  clk: qcom: apss-ipq-pll: remove 'config_ctl_hi_val' from Stromer pll configs
  clk: qcom: clk-alpha-pll: set ALPHA_EN bit for Stromer Plus PLLs
  clk: qcom: gcc-sm6350: Fix gpll6* & gpll7 parents
2024-07-07 10:59:38 -07:00
Linus Torvalds c6653f49e4 powerpc fixes for 6.10 #4
- Fix unnecessary copy to 0 when kernel is booted at address 0.
 
  - Fix usercopy crash when dumping dtl via debugfs.
 
  - Avoid possible crash when PCI hotplug races with error handling.
 
  - Fix kexec crash caused by scv being disabled before other CPUs call-in.
 
  - Fix powerpc selftests build with USERCFLAGS set.
 
 Thanks to: Anjali K, Ganesh Goudar, Gautam Menghani, Jinglin Wen, Nicholas
 Piggin, Sourabh Jain, Srikar Dronamraju, Vishal Chourasia.
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Merge tag 'powerpc-6.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix unnecessary copy to 0 when kernel is booted at address 0

 - Fix usercopy crash when dumping dtl via debugfs

 - Avoid possible crash when PCI hotplug races with error handling

 - Fix kexec crash caused by scv being disabled before other CPUs
   call-in

 - Fix powerpc selftests build with USERCFLAGS set

Thanks to Anjali K, Ganesh Goudar, Gautam Menghani, Jinglin Wen,
Nicholas Piggin, Sourabh Jain, Srikar Dronamraju, and Vishal Chourasia.

* tag 'powerpc-6.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Fix build with USERCFLAGS set
  powerpc/pseries: Fix scv instruction crash with kexec
  powerpc/eeh: avoid possible crash when edev->pdev changes
  powerpc/pseries: Whitelist dtl slub object for copying to userspace
  powerpc/64s: Fix unnecessary copy to 0 when kernel is booted at address 0
2024-07-06 18:31:24 -07:00
Linus Torvalds 256fdd4b71 fix for smb3 readahead performance regression
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Merge tag '6.10-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fix from Steve French:
 "Fix for smb3 readahead performance regression"

* tag '6.10-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix read-performance regression by dropping readahead expansion
2024-07-06 16:16:58 -07:00
Linus Torvalds 22f902dfc5 Passing through an I2C driver fix
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Merge tag 'i2c-for-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fix from Wolfram Sang:
 "An i2c driver fix"

* tag 'i2c-for-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr
2024-07-06 09:51:00 -07:00
Michael Ellerman 8b7f59de92 selftests/powerpc: Fix build with USERCFLAGS set
Currently building the powerpc selftests with USERCFLAGS set to anything
causes the build to break:

  $ make -C tools/testing/selftests/powerpc V=1 USERCFLAGS=-Wno-error
  ...
  gcc -Wno-error    cache_shape.c ...
  cache_shape.c:18:10: fatal error: utils.h: No such file or directory
     18 | #include "utils.h"
        |          ^~~~~~~~~
  compilation terminated.

This happens because the USERCFLAGS are added to CFLAGS in lib.mk, which
causes the check of CFLAGS in powerpc/flags.mk to skip setting CFLAGS at
all, resulting in none of the usual CFLAGS being passed. That can
be seen in the output above, the only flag passed to the compiler is
-Wno-error.

Fix it by dropping the conditional setting of CFLAGS in flags.mk.
Instead always set CFLAGS, but also append USERCFLAGS if they are set.

Note that appending to CFLAGS (with +=) wouldn't work, because flags.mk
is included by multiple Makefiles (to support partial builds), causing
CFLAGS to be appended to multiple times. Additionally that would place
the USERCFLAGS prior to the standard CFLAGS, meaning the USERCFLAGS
couldn't override the standard flags. Being able to override the
standard flags is desirable, for example for adding -Wno-error.

With the fix in place, the CFLAGS are set correctly, including the
USERCFLAGS:

  $ make -C tools/testing/selftests/powerpc V=1 USERCFLAGS=-Wno-error
  ...
  gcc -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"v6.10-rc2-7-gdea17e7e56c3"'
  -I/home/michael/linux/tools/testing/selftests/powerpc/include -Wno-error
  cache_shape.c ...

Fixes: 5553a79387 ("selftests/powerpc: Add flags.mk to support pmu buildable")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240706120833.909853-1-mpe@ellerman.id.au
2024-07-06 22:10:14 +10:00
Linus Torvalds 1dd28064d4 integrity-v6.10-fix
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Merge tag 'integrity-v6.10-fix' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity fix from Mimi Zohar:
 "A single bug fix to properly remove all of the securityfs IMA
  measurement lists"

* tag 'integrity-v6.10-fix' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: fix wrong zero-assignment during securityfs dentry remove
2024-07-05 16:21:54 -07:00
Linus Torvalds d270dd21be pci-v6.10-fixes-2
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Merge tag 'pci-v6.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci update from Bjorn Helgaas:

 - Update MAINTAINERS and CREDITS to credit Gustavo Pimentel with the
   Synopsys DesignWare eDMA driver and reflect that he is no longer at
   Synopsys and isn't in a position to maintain the DesignWare xData
   traffic generator (Bjorn Helgaas)

* tag 'pci-v6.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  CREDITS: Add Synopsys DesignWare eDMA driver for Gustavo Pimentel
  MAINTAINERS: Orphan Synopsys DesignWare xData traffic generator
2024-07-05 12:33:00 -07:00
Linus Torvalds b673f2bda0 RISC-V Fixes for 6.10-rc7
* A fix for the CMODX example in therecently added icache flushing
   prctl().
 * A fix to the perf driver to avoid corrupting event data on counter
   overflows when external overflow handlers are in use.
 * A fix to clear all hardware performance monitor events on boot, to
   avoid dangling events firmware or previously booted kernels from
   triggering spuriously.
 * A fix to the perf event probing logic to avoid erroneously reporting
   the presence of unimplemented counters.  This also prevents some
   implemented counters from being reported.
 * A build fix for the vector sigreturn selftest on clang.
 * A fix to ftrace, which now requires the previously optional index
   argument to ftrace_graph_ret_addr().
 * A fix to avoid deadlocking if kexec crash handling triggers in an
   interrupt context.
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Merge tag 'riscv-for-linus-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for the CMODX example in the recently added icache flushing
   prctl()

 - A fix to the perf driver to avoid corrupting event data on counter
   overflows when external overflow handlers are in use

 - A fix to clear all hardware performance monitor events on boot, to
   avoid dangling events firmware or previously booted kernels from
   triggering spuriously

 - A fix to the perf event probing logic to avoid erroneously reporting
   the presence of unimplemented counters. This also prevents some
   implemented counters from being reported

 - A build fix for the vector sigreturn selftest on clang

 - A fix to ftrace, which now requires the previously optional index
   argument to ftrace_graph_ret_addr()

 - A fix to avoid deadlocking if kexec crash handling triggers in an
   interrupt context

* tag 'riscv-for-linus-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: kexec: Avoid deadlock in kexec crash path
  riscv: stacktrace: fix usage of ftrace_graph_ret_addr()
  riscv: selftests: Fix vsetivli args for clang
  perf: RISC-V: Check standard event availability
  drivers/perf: riscv: Reset the counter to hpmevent mapping while starting cpus
  drivers/perf: riscv: Do not update the event data if uptodate
  documentation: Fix riscv cmodx example
2024-07-05 12:22:51 -07:00
Wolfram Sang b46803320c This tag includes a nice fix in the PNX driver that has been
pending for a long time. Piotr has replaced a potential lock in
 the interrupt context with a more efficient and straightforward
 handling of the timeout signaling.
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Merge tag 'i2c-host-fixes-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current

This tag includes a nice fix in the PNX driver that has been
pending for a long time. Piotr has replaced a potential lock in
the interrupt context with a more efficient and straightforward
handling of the timeout signaling.
2024-07-05 16:08:55 +02:00
Piotr Wojtaszczyk f63b94be69 i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr
When del_timer_sync() is called in an interrupt context it throws a warning
because of potential deadlock. The timer is used only to exit from
wait_for_completion() after a timeout so replacing the call with
wait_for_completion_timeout() allows to remove the problematic timer and
its related functions altogether.

Fixes: 41561f28e7 ("i2c: New Philips PNX bus driver")
Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-04 00:17:47 +02:00
Song Shuai c562ba719d
riscv: kexec: Avoid deadlock in kexec crash path
If the kexec crash code is called in the interrupt context, the
machine_kexec_mask_interrupts() function will trigger a deadlock while
trying to acquire the irqdesc spinlock and then deactivate irqchip in
irq_set_irqchip_state() function.

Unlike arm64, riscv only requires irq_eoi handler to complete EOI and
keeping irq_set_irqchip_state() will only leave this possible deadlock
without any use. So we simply remove it.

Link: https://lore.kernel.org/linux-riscv/20231208111015.173237-1-songshuaishuai@tinylab.org/
Fixes: b17d19a531 ("riscv: kexec: Fixup irq controller broken in kexec crash path")
Signed-off-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Ryo Takakura <takakura@valinux.co.jp>
Link: https://lore.kernel.org/r/20240626023316.539971-1-songshuaishuai@tinylab.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 13:11:30 -07:00
Puranjay Mohan 393da6cbb2
riscv: stacktrace: fix usage of ftrace_graph_ret_addr()
ftrace_graph_ret_addr() takes an `idx` integer pointer that is used to
optimize the stack unwinding. Pass it a valid pointer to utilize the
optimizations that might be available in the future.

The commit is making riscv's usage of ftrace_graph_ret_addr() match
x86_64.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20240618145820.62112-1-puranjay@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 13:10:03 -07:00
Charlie Jenkins 3582ce0d7c
riscv: selftests: Fix vsetivli args for clang
Clang does not support implicit LMUL in the vset* instruction sequences.
Introduce an explicit LMUL in the vsetivli instruction.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Fixes: 9d5328eeb1 ("riscv: selftests: Add signal handling vector tests")
Link: https://lore.kernel.org/r/20240702-fix_sigreturn_test-v1-1-485f88a80612@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 13:04:54 -07:00
Palmer Dabbelt 210ac17ded
Merge patch series "Assorted fixes in RISC-V PMU driver"
Atish Patra <atishp@rivosinc.com> says:

This series contains 3 fixes out of which the first one is a new fix
for invalid event data reported in lkml[2]. The last two are v3 of Samuel's
patch[1]. I added the RB/TB/Fixes tag and moved 1 unrelated change
to its own patch. I also changed an error message in kvm vcpu_pmu from
pr_err to pr_debug to avoid redundant failure error messages generated
due to the boot time quering of events implemented in the patch[1]

Here is the original cover letter for the patch[1]

Before this patch:
$ perf list hw

List of pre-defined events (to be used in -e or -M):

  branch-instructions OR branches                    [Hardware event]
  branch-misses                                      [Hardware event]
  bus-cycles                                         [Hardware event]
  cache-misses                                       [Hardware event]
  cache-references                                   [Hardware event]
  cpu-cycles OR cycles                               [Hardware event]
  instructions                                       [Hardware event]
  ref-cycles                                         [Hardware event]
  stalled-cycles-backend OR idle-cycles-backend      [Hardware event]
  stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]

$ perf stat -ddd true

 Performance counter stats for 'true':

              4.36 msec task-clock                       #    0.744 CPUs utilized
                 1      context-switches                 #  229.325 /sec
                 0      cpu-migrations                   #    0.000 /sec
                38      page-faults                      #    8.714 K/sec
         4,375,694      cycles                           #    1.003 GHz                         (60.64%)
           728,945      instructions                     #    0.17  insn per cycle
            79,199      branches                         #   18.162 M/sec
            17,709      branch-misses                    #   22.36% of all branches
           181,734      L1-dcache-loads                  #   41.676 M/sec
             5,547      L1-dcache-load-misses            #    3.05% of all L1-dcache accesses
     <not counted>      LLC-loads                                                               (0.00%)
     <not counted>      LLC-load-misses                                                         (0.00%)
     <not counted>      L1-icache-loads                                                         (0.00%)
     <not counted>      L1-icache-load-misses                                                   (0.00%)
     <not counted>      dTLB-loads                                                              (0.00%)
     <not counted>      dTLB-load-misses                                                        (0.00%)
     <not counted>      iTLB-loads                                                              (0.00%)
     <not counted>      iTLB-load-misses                                                        (0.00%)
     <not counted>      L1-dcache-prefetches                                                    (0.00%)
     <not counted>      L1-dcache-prefetch-misses                                               (0.00%)

       0.005860375 seconds time elapsed

       0.000000000 seconds user
       0.010383000 seconds sys

After this patch:
$ perf list hw

List of pre-defined events (to be used in -e or -M):

  branch-instructions OR branches                    [Hardware event]
  branch-misses                                      [Hardware event]
  cache-misses                                       [Hardware event]
  cache-references                                   [Hardware event]
  cpu-cycles OR cycles                               [Hardware event]
  instructions                                       [Hardware event]

$ perf stat -ddd true

 Performance counter stats for 'true':

              5.16 msec task-clock                       #    0.848 CPUs utilized
                 1      context-switches                 #  193.817 /sec
                 0      cpu-migrations                   #    0.000 /sec
                37      page-faults                      #    7.171 K/sec
         5,183,625      cycles                           #    1.005 GHz
           961,696      instructions                     #    0.19  insn per cycle
            85,853      branches                         #   16.640 M/sec
            20,462      branch-misses                    #   23.83% of all branches
           243,545      L1-dcache-loads                  #   47.203 M/sec
             5,974      L1-dcache-load-misses            #    2.45% of all L1-dcache accesses
   <not supported>      LLC-loads
   <not supported>      LLC-load-misses
   <not supported>      L1-icache-loads
   <not supported>      L1-icache-load-misses
   <not supported>      dTLB-loads
            19,619      dTLB-load-misses
   <not supported>      iTLB-loads
             6,831      iTLB-load-misses
   <not supported>      L1-dcache-prefetches
   <not supported>      L1-dcache-prefetch-misses

       0.006085625 seconds time elapsed

       0.000000000 seconds user
       0.013022000 seconds sys

[1] https://lore.kernel.org/linux-riscv/20240418014652.1143466-1-samuel.holland@sifive.com/
[2] https://lore.kernel.org/all/CC51D53B-846C-4D81-86FC-FBF969D0A0D6@pku.edu.cn/

* b4-shazam-merge:
  perf: RISC-V: Check standard event availability
  drivers/perf: riscv: Reset the counter to hpmevent mapping while starting cpus
  drivers/perf: riscv: Do not update the event data if uptodate

Link: https://lore.kernel.org/r/20240628-misc_perf_fixes-v4-0-e01cfddcf035@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 12:57:41 -07:00
Samuel Holland 16d3b1af09
perf: RISC-V: Check standard event availability
The RISC-V SBI PMU specification defines several standard hardware and
cache events. Currently, all of these events are exposed to userspace,
even when not actually implemented. They appear in the `perf list`
output, and commands like `perf stat` try to use them.

This is more than just a cosmetic issue, because the PMU driver's .add
function fails for these events, which causes pmu_groups_sched_in() to
prematurely stop scheduling in other (possibly valid) hardware events.

Add logic to check which events are supported by the hardware (i.e. can
be mapped to some counter), so only usable events are reported to
userspace. Since the kernel does not know the mapping between events and
possible counters, this check must happen during boot, when no counters
are in use. Make the check asynchronous to minimize impact on boot time.

Fixes: e999143459 ("RISC-V: Add perf platform driver based on SBI PMU extension")

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240628-misc_perf_fixes-v4-3-e01cfddcf035@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 12:56:22 -07:00
Samuel Holland 7dd646cf74
drivers/perf: riscv: Reset the counter to hpmevent mapping while starting cpus
Currently, we stop all the counters while a new cpu is brought online.
However, the hpmevent to counter mappings are not reset. The firmware may
have some stale encoding in their mapping structure which may lead to
undesirable results. We have not encountered such scenario though.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240628-misc_perf_fixes-v4-2-e01cfddcf035@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 12:56:21 -07:00
Atish Patra a3f24e83d1
drivers/perf: riscv: Do not update the event data if uptodate
In case of an counter overflow, the event data may get corrupted
if called from an external overflow handler. This happens because
we can't update the counter without starting it when SBI PMU
extension is in use. However, the prev_count has been already
updated at the first pass while the counter value is still the
old one.

The solution is simple where we don't need to update it again
if it is already updated which can be detected using hwc state.
The event state in the overflow handler is updated in the following
patch. Thus, this fix can't be backported to kernel version where
overflow support was added.

Fixes: a8625217a0 ("drivers/perf: riscv: Implement SBI PMU snapshot function")

Closes:https://lore.kernel.org/all/CC51D53B-846C-4D81-86FC-FBF969D0A0D6@pku.edu.cn/

Reported-by: garthlei@pku.edu.cn
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240628-misc_perf_fixes-v4-1-e01cfddcf035@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-03 12:56:15 -07:00
David Howells 08f70c0a93 cifs: Fix read-performance regression by dropping readahead expansion
cifs_expand_read() is causing a performance regression of around 30% by
causing extra pagecache to be allocated for an inode in the readahead path
before we begin actually dispatching RPC requests, thereby delaying the
actual I/O.  The expansion is sized according to the rsize parameter, which
seems to be 4MiB on my test system; this is a big step up from the first
requests made by the fio test program.

Simple repro (look at read bandwidth number):
     fio --name=writetest --filename=/xfstest.test/foo --time_based --runtime=60 --size=16M --numjobs=1 --rw=read

Fix this by removing cifs_expand_readahead().  Readahead expansion is
mostly useful for when we're using the local cache if the local cache has a
block size greater than PAGE_SIZE, so we can dispense with it when not
caching.

Fixes: 69c3c023af ("cifs: Implement netfslib hooks")
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: Matthew Wilcox <willy@infradead.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-07-02 21:23:41 -05:00
Stephen Boyd 10f84de27b Qualcomm clock fixes for v6.10
Correct the Stromer Plus PLL set_rate to explicitly set ALPHA_EN bit and
 remove unnecessary upper parts of CONFIG_CTL values.
 
 Mark the recently added IPQ9574 GCC crypto clocks BRANCH_HALT_VOTED, to
 address stuck clock warnings.
 
 Lastly fix the GPLL6 and GPLL7 parents on SM6350 to avoid issues with
 these reportedly running at ~25GHz.
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Merge tag 'qcom-clk-fixes-for-6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into clk-fixes

Pull Qualcomm clk driver fixes from Bjorn Andersson:

 - Correct the Stromer Plus PLL set_rate to explicitly set ALPHA_EN bit and
   remove unnecessary upper parts of CONFIG_CTL values.
 - Mark the recently added IPQ9574 GCC crypto clocks BRANCH_HALT_VOTED, to
   address stuck clock warnings.
 - Fix the GPLL6 and GPLL7 parents on SM6350 to avoid issues with these
   reportedly running at ~25GHz.

* tag 'qcom-clk-fixes-for-6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  clk: qcom: gcc-ipq9574: Add BRANCH_HALT_VOTED flag
  clk: qcom: apss-ipq-pll: remove 'config_ctl_hi_val' from Stromer pll configs
  clk: qcom: clk-alpha-pll: set ALPHA_EN bit for Stromer Plus PLLs
  clk: qcom: gcc-sm6350: Fix gpll6* & gpll7 parents
2024-07-02 12:03:15 -07:00
Pin-yen Lin 878e845d8d clk: mediatek: mt8183: Only enable runtime PM on mt8183-mfgcfg
Commit 2f7b1d8b55 ("clk: mediatek: Do a runtime PM get on controllers
during probe") enabled runtime PM for all mediatek clock controllers,
but this introduced an issue on the resume path.

If a device resumes earlier than the clock controller and calls
clk_prepare() when runtime PM is enabled on the controller, it will end
up calling clk_pm_runtime_get(). But the subsequent
pm_runtime_resume_and_get() call will fail because the runtime PM is
temporarily disabled during suspend.

To workaround this, introduce a need_runtime_pm flag and only enable it
on mt8183-mfgcfg, which is the driver that observed deadlock previously.
Hopefully mt8183-cfgcfg won't run into the issue at the resume stage
because the GPU should have stopped rendering before the system calls
suspend.

Fixes: 2f7b1d8b55 ("clk: mediatek: Do a runtime PM get on controllers during probe")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Link: https://lore.kernel.org/r/20240613120357.1043342-1-treapking@chromium.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-01 13:49:07 -07:00
Stephen Boyd f7275fdf94 Allwinner SoC clk fixes for 6.10
- Fix min/max rate clamping that caused a regression back in 6.9
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Merge tag 'sunxi-clk-fixes-for-6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Pull one Allwinner SoC clk driver fix for 6.10

 - Fix min/max rate clamping that caused a regression back in 6.9

* tag 'sunxi-clk-fixes-for-6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common
2024-07-01 13:18:29 -07:00
Charlie Jenkins 7c5d838d70
documentation: Fix riscv cmodx example
ON/OFF in the keys was swapped between the first and second argument of
the prctl. The prctl key is always PR_RISCV_SET_ICACHE_FLUSH_CTX, and
the second argument can be PR_RISCV_CTX_SW_FENCEI_ON or
PR_RISCV_CTX_SW_FENCEI_OFF.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Fixes: 6a08e4709c ("documentation: Document PR_RISCV_SET_ICACHE_FLUSH_CTX prctl")
Link: https://lore.kernel.org/r/20240628-fix_cmodx_example-v1-1-e6c6523bc163@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-01 10:50:18 -07:00
Frank Oltmanns ea977d7425 clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common
In order to set the rate range of a hw sunxi_ccu_probe calls
hw_to_ccu_common() assuming all entries in desc->ccu_clks are contained
in a ccu_common struct. This assumption is incorrect and, in
consequence, causes invalid pointer de-references.

Remove the faulty call. Instead, add one more loop that iterates over
the ccu_clks and sets the rate range, if required.

Fixes: b914ec33b3 ("clk: sunxi-ng: common: Support minimum and maximum rate")
Reported-by: Robert J. Pafford <pafford.9@buckeyemail.osu.edu>
Closes: https://lore.kernel.org/lkml/DM6PR01MB58047C810DDD5D0AE397CADFF7C22@DM6PR01MB5804.prod.exchangelabs.com/
Cc: stable@vger.kernel.org
Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>
Tested-by: Robert J. Pafford <pafford.9@buckeyemail.osu.edu>
Link: https://lore.kernel.org/r/20240623-sunxi-ng_fix_common_probe-v1-1-7c97e32824a1@oltmanns.dev
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2024-06-30 23:12:44 +08:00
Nicholas Piggin 21a741eb75 powerpc/pseries: Fix scv instruction crash with kexec
kexec on pseries disables AIL (reloc_on_exc), required for scv
instruction support, before other CPUs have been shut down. This means
they can execute scv instructions after AIL is disabled, which causes an
interrupt at an unexpected entry location that crashes the kernel.

Change the kexec sequence to disable AIL after other CPUs have been
brought down.

As a refresher, the real-mode scv interrupt vector is 0x17000, and the
fixed-location head code probably couldn't easily deal with implementing
such high addresses so it was just decided not to support that interrupt
at all.

Fixes: 7fa95f9ada ("powerpc/64s: system call support for scv/rfscv instructions")
Cc: stable@vger.kernel.org # v5.9+
Reported-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Closes: https://lore.kernel.org/3b4b2943-49ad-4619-b195-bc416f1d1409@linux.ibm.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Gautam Menghani <gautam@linux.ibm.com>
Tested-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Link: https://msgid.link/20240625134047.298759-1-npiggin@gmail.com
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2024-06-28 22:05:44 +10:00
Ganesh Goudar a1216e62d0 powerpc/eeh: avoid possible crash when edev->pdev changes
If a PCI device is removed during eeh_pe_report_edev(), edev->pdev
will change and can cause a crash, hold the PCI rescan/remove lock
while taking a copy of edev->pdev->bus.

Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240617140240.580453-1-ganeshgr@linux.ibm.com
2024-06-23 11:54:27 +10:00
Anjali K 1a14150e16 powerpc/pseries: Whitelist dtl slub object for copying to userspace
Reading the dispatch trace log from /sys/kernel/debug/powerpc/dtl/cpu-*
results in a BUG() when the config CONFIG_HARDENED_USERCOPY is enabled as
shown below.

    kernel BUG at mm/usercopy.c:102!
    Oops: Exception in kernel mode, sig: 5 [#1]
    LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
    Modules linked in: xfs libcrc32c dm_service_time sd_mod t10_pi sg ibmvfc
    scsi_transport_fc ibmveth pseries_wdt dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse
    CPU: 27 PID: 1815 Comm: python3 Not tainted 6.10.0-rc3 #85
    Hardware name: IBM,9040-MRX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NM1060_042) hv:phyp pSeries
    NIP:  c0000000005d23d4 LR: c0000000005d23d0 CTR: 00000000006ee6f8
    REGS: c000000120c078c0 TRAP: 0700   Not tainted  (6.10.0-rc3)
    MSR:  8000000000029033 <SF,EE,ME,IR,DR,RI,LE>  CR: 2828220f  XER: 0000000e
    CFAR: c0000000001fdc80 IRQMASK: 0
    [ ... GPRs omitted ... ]
    NIP [c0000000005d23d4] usercopy_abort+0x78/0xb0
    LR [c0000000005d23d0] usercopy_abort+0x74/0xb0
    Call Trace:
     usercopy_abort+0x74/0xb0 (unreliable)
     __check_heap_object+0xf8/0x120
     check_heap_object+0x218/0x240
     __check_object_size+0x84/0x1a4
     dtl_file_read+0x17c/0x2c4
     full_proxy_read+0x8c/0x110
     vfs_read+0xdc/0x3a0
     ksys_read+0x84/0x144
     system_call_exception+0x124/0x330
     system_call_vectored_common+0x15c/0x2ec
    --- interrupt: 3000 at 0x7fff81f3ab34

Commit 6d07d1cd30 ("usercopy: Restrict non-usercopy caches to size 0")
requires that only whitelisted areas in slab/slub objects can be copied to
userspace when usercopy hardening is enabled using CONFIG_HARDENED_USERCOPY.
Dtl contains hypervisor dispatch events which are expected to be read by
privileged users. Hence mark this safe for user access.
Specify useroffset=0 and usersize=DISPATCH_LOG_BYTES to whitelist the
entire object.

Co-developed-by: Vishal Chourasia <vishalc@linux.ibm.com>
Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
Signed-off-by: Anjali K <anjalik@linux.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240614173844.746818-1-anjalik@linux.ibm.com
2024-06-23 11:54:27 +10:00
Jinglin Wen 13fc6c1759 powerpc/64s: Fix unnecessary copy to 0 when kernel is booted at address 0
According to the code logic, when the kernel is loaded at address 0, no
copying operation should be performed, but it is currently being done.

This patch fixes the issue where the kernel code was incorrectly
duplicated to address 0 when booting from address 0.

Fixes: b270bebd34 ("powerpc/64s: Run at the kernel virtual address earlier in boot")
Cc: stable@vger.kernel.org # v6.4+
Signed-off-by: Jinglin Wen <jinglin.wen@shingroup.cn>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240620024150.14857-1-jinglin.wen@shingroup.cn
2024-06-23 11:54:13 +10:00
Bjorn Helgaas 419d57d429 CREDITS: Add Synopsys DesignWare eDMA driver for Gustavo Pimentel
Add the Synopsys DesignWare eDMA driver to CREDITS for Gustavo.  See
7e4b8a4fbe ("dmaengine: Add Synopsys eDMA IP version 0 support").

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2024-06-11 10:26:06 -05:00
Bjorn Helgaas 9554dd215f MAINTAINERS: Orphan Synopsys DesignWare xData traffic generator
Gustavo Pimentel <gustavo.pimentel@synopsys.com> is listed as the
maintainer of the Synopsys DesignWare xData traffic generator, but he's no
longer at Synopsys, and nobody has stepped up to maintain it.

Mark Synopsys DesignWare xData traffic generator as orphaned and add it to
Gustavo's entry in CREDITS.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2024-06-10 15:14:34 -05:00
Enrico Bravi fbf06cee60 ima: fix wrong zero-assignment during securityfs dentry remove
In case of error during ima_fs_init() all the dentry already created
are removed. {ascii, binary}_securityfs_measurement_lists are freed
calling for each array the remove_securityfs_measurement_lists(). This
function, at the end, assigns to zero the securityfs_measurement_list_count.
This causes during the second call of remove_securityfs_measurement_lists()
to leave the dentry of the array pending, not removing them correctly,
because the securityfs_measurement_list_count is already zero.

Move the securityfs_measurement_list_count = 0 after the two
remove_securityfs_measurement_lists() calls to correctly remove all the
dentry already allocated.

Fixes: 9fa8e76250 ("ima: add crypto agility support for template-hash algorithm")
Signed-off-by: Enrico Bravi <enrico.bravi@polito.it>
Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2024-06-03 16:37:22 -04:00
Md Sadre Alam 72ceafb587 clk: qcom: gcc-ipq9574: Add BRANCH_HALT_VOTED flag
The crypto_ahb and crypto_axi clks are hardware voteable.
This means that the halt bit isn't reliable because some
other voter in the system, e.g. TrustZone, could be keeping
the clk enabled when the kernel turns it off from clk_disable().
Make these clks use voting mode by changing the halt check to
BRANCH_HALT_VOTED and toggle the voting bit in the voting register
instead of directly controlling the branch by writing to the branch
register. This fixes stuck clk warnings seen on ipq9574 and saves
power by actually turning the clk off.

Also changes the CRYPTO_AHB_CLK_ENA & CRYPTO_AXI_CLK_ENA
offset to 0xb004 from 0x16014.

Cc: stable@vger.kernel.org
Fixes: f6b2bd9cb2 ("clk: qcom: gcc-ipq9574: Enable crypto clocks")
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Link: https://lore.kernel.org/r/20240509105405.1262369-1-quic_mdalam@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-28 16:32:47 -05:00
Gabor Juhos 2ba8425678 clk: qcom: apss-ipq-pll: remove 'config_ctl_hi_val' from Stromer pll configs
Since the CONFIG_CTL register is only 32 bits wide in the Stromer
and Stromer Plus PLLs , the 'config_ctl_hi_val' values from the
IPQ5018 and IPQ5332 configurations are not used so remove those.

No functional changes.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240509-stromer-config-ctl-v1-1-6034e17b28d5@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-28 16:31:16 -05:00
Gabor Juhos 5a33a64524 clk: qcom: clk-alpha-pll: set ALPHA_EN bit for Stromer Plus PLLs
The clk_alpha_pll_stromer_plus_set_rate() function does not
sets the ALPHA_EN bit in the USER_CTL register, so setting
rates which requires using alpha mode works only if the bit
gets set already prior calling the function.

Extend the function to set the ALPHA_EN bit in order to allow
using fractional rates regardless whether the bit gets set
previously or not.

Fixes: 84da48921a ("clk: qcom: clk-alpha-pll: introduce stromer plus ops")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://lore.kernel.org/r/20240508-stromer-plus-alpha-en-v1-1-6639ce01ca5b@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-28 16:31:13 -05:00
Luca Weiss 3414f41a13 clk: qcom: gcc-sm6350: Fix gpll6* & gpll7 parents
Both gpll6 and gpll7 are parented to CXO at 19.2 MHz and not to GPLL0
which runs at 600 MHz. Also gpll6_out_even should have the parent gpll6
and not gpll0.

Adjust the parents of these clocks to make Linux report the correct rate
and not absurd numbers like gpll7 at ~25 GHz or gpll6 at 24 GHz.

Corrected rates are the following:

  gpll7              807999902 Hz
  gpll6              768000000 Hz
     gpll6_out_even  384000000 Hz
  gpll0              600000000 Hz
     gpll0_out_odd   200000000 Hz
     gpll0_out_even  300000000 Hz

And because gpll6 is the parent of gcc_sdcc2_apps_clk_src (at 202 MHz)
that clock also reports the correct rate now and avoids this warning:

  [    5.984062] mmc0: Card appears overclocked; req 202000000 Hz, actual 6312499237 Hz

Fixes: 131abae905 ("clk: qcom: Add SM6350 GCC driver")
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20240508-sm6350-gpll-fix-v1-1-e4ea34284a6d@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-28 16:30:23 -05:00
30 changed files with 193 additions and 139 deletions

View File

@ -3150,9 +3150,11 @@ S: Triftstra=DFe 55
S: 13353 Berlin
S: Germany
N: Gustavo Pimental
N: Gustavo Pimentel
E: gustavo.pimentel@synopsys.com
D: PCI driver for Synopsys DesignWare
D: Synopsys DesignWare eDMA driver
D: Synopsys DesignWare xData traffic generator
N: Emanuel Pirker
E: epirker@edu.uni-klu.ac.at

View File

@ -62,10 +62,10 @@ cmodx.c::
printf("Value before cmodx: %d\n", value);
// Call prctl before first fence.i is called inside modify_instruction
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX_ON, PR_RISCV_CTX_SW_FENCEI, PR_RISCV_SCOPE_PER_PROCESS);
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_ON, PR_RISCV_SCOPE_PER_PROCESS);
modify_instruction();
// Call prctl after final fence.i is called in process
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX_OFF, PR_RISCV_CTX_SW_FENCEI, PR_RISCV_SCOPE_PER_PROCESS);
prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_OFF, PR_RISCV_SCOPE_PER_PROCESS);
value = get_value();
printf("Value after cmodx: %d\n", value);

View File

@ -6238,9 +6238,8 @@ S: Maintained
F: drivers/usb/dwc3/
DESIGNWARE XDATA IP DRIVER
M: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
L: linux-pci@vger.kernel.org
S: Maintained
S: Orphan
F: Documentation/misc-devices/dw-xdata-pcie.rst
F: drivers/misc/dw-xdata-pcie.c

View File

@ -2,7 +2,7 @@
VERSION = 6
PATCHLEVEL = 10
SUBLEVEL = 0
EXTRAVERSION = -rc6
EXTRAVERSION = -rc7
NAME = Baby Opossum Posse
# *DOCUMENTATION*

View File

@ -849,6 +849,7 @@ struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe)
{
struct eeh_dev *edev;
struct pci_dev *pdev;
struct pci_bus *bus = NULL;
if (pe->type & EEH_PE_PHB)
return pe->phb->bus;
@ -859,9 +860,11 @@ struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe)
/* Retrieve the parent PCI bus of first (top) PCI device */
edev = list_first_entry_or_null(&pe->edevs, struct eeh_dev, entry);
pci_lock_rescan_remove();
pdev = eeh_dev_to_pci_dev(edev);
if (pdev)
return pdev->bus;
bus = pdev->bus;
pci_unlock_rescan_remove();
return NULL;
return bus;
}

View File

@ -647,8 +647,9 @@ __after_prom_start:
* Note: This process overwrites the OF exception vectors.
*/
LOAD_REG_IMMEDIATE(r3, PAGE_OFFSET)
mr. r4,r26 /* In some cases the loader may */
beq 9f /* have already put us at zero */
mr r4,r26 /* Load the virtual source address into r4 */
cmpld r3,r4 /* Check if source == dest */
beq 9f /* If so skip the copy */
li r6,0x100 /* Start offset, the first 0x100 */
/* bytes were copied earlier. */

View File

@ -27,6 +27,7 @@
#include <asm/paca.h>
#include <asm/mmu.h>
#include <asm/sections.h> /* _end */
#include <asm/setup.h>
#include <asm/smp.h>
#include <asm/hw_breakpoint.h>
#include <asm/svm.h>
@ -317,6 +318,16 @@ void default_machine_kexec(struct kimage *image)
if (!kdump_in_progress())
kexec_prepare_cpus();
#ifdef CONFIG_PPC_PSERIES
/*
* This must be done after other CPUs have shut down, otherwise they
* could execute the 'scv' instruction, which is not supported with
* reloc disabled (see configure_exceptions()).
*/
if (firmware_has_feature(FW_FEATURE_SET_MODE))
pseries_disable_reloc_on_exc();
#endif
printk("kexec: Starting switchover sequence.\n");
/* switch to a staticly allocated stack. Based on irq stack code.

View File

@ -61,11 +61,3 @@ void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
} else
xics_kexec_teardown_cpu(secondary);
}
void pseries_machine_kexec(struct kimage *image)
{
if (firmware_has_feature(FW_FEATURE_SET_MODE))
pseries_disable_reloc_on_exc();
default_machine_kexec(image);
}

View File

@ -38,7 +38,6 @@ static inline void smp_init_pseries(void) { }
#endif
extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary);
void pseries_machine_kexec(struct kimage *image);
extern void pSeries_final_fixup(void);

View File

@ -343,8 +343,8 @@ static int alloc_dispatch_log_kmem_cache(void)
{
void (*ctor)(void *) = get_dtl_cache_ctor();
dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
DISPATCH_LOG_BYTES, 0, ctor);
dtl_cache = kmem_cache_create_usercopy("dtl", DISPATCH_LOG_BYTES,
DISPATCH_LOG_BYTES, 0, 0, DISPATCH_LOG_BYTES, ctor);
if (!dtl_cache) {
pr_warn("Failed to create dispatch trace log buffer cache\n");
pr_warn("Stolen time statistics will be unreliable\n");
@ -1159,7 +1159,6 @@ define_machine(pseries) {
.machine_check_exception = pSeries_machine_check_exception,
.machine_check_log_err = pSeries_machine_check_log_err,
#ifdef CONFIG_KEXEC_CORE
.machine_kexec = pseries_machine_kexec,
.kexec_cpu_down = pseries_kexec_cpu_down,
#endif
#ifdef CONFIG_MEMORY_HOTPLUG

View File

@ -121,20 +121,12 @@ static void machine_kexec_mask_interrupts(void)
for_each_irq_desc(i, desc) {
struct irq_chip *chip;
int ret;
chip = irq_desc_get_chip(desc);
if (!chip)
continue;
/*
* First try to remove the active state. If this
* fails, try to EOI the interrupt.
*/
ret = irq_set_irqchip_state(i, IRQCHIP_STATE_ACTIVE, false);
if (ret && irqd_irq_inprogress(&desc->irq_data) &&
chip->irq_eoi)
if (chip->irq_eoi && irqd_irq_inprogress(&desc->irq_data))
chip->irq_eoi(&desc->irq_data);
if (chip->irq_mask)

View File

@ -32,6 +32,7 @@ void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
bool (*fn)(void *, unsigned long), void *arg)
{
unsigned long fp, sp, pc;
int graph_idx = 0;
int level = 0;
if (regs) {
@ -68,7 +69,7 @@ void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
pc = regs->ra;
} else {
fp = frame->fp;
pc = ftrace_graph_ret_addr(current, NULL, frame->ra,
pc = ftrace_graph_ret_addr(current, &graph_idx, frame->ra,
&frame->ra);
if (pc == (unsigned long)ret_from_exception) {
if (unlikely(!__kernel_text_address(pc) || !fn(arg, pc)))

View File

@ -327,7 +327,7 @@ static long kvm_pmu_create_perf_event(struct kvm_pmc *pmc, struct perf_event_att
event = perf_event_create_kernel_counter(attr, -1, current, kvm_riscv_pmu_overflow, pmc);
if (IS_ERR(event)) {
pr_err("kvm pmu event creation failed for eidx %lx: %ld\n", eidx, PTR_ERR(event));
pr_debug("kvm pmu event creation failed for eidx %lx: %ld\n", eidx, PTR_ERR(event));
return PTR_ERR(event);
}

View File

@ -29,6 +29,7 @@ static const struct mtk_gate mfg_clks[] = {
static const struct mtk_clk_desc mfg_desc = {
.clks = mfg_clks,
.num_clks = ARRAY_SIZE(mfg_clks),
.need_runtime_pm = true,
};
static const struct of_device_id of_match_clk_mt8183_mfg[] = {

View File

@ -496,14 +496,16 @@ static int __mtk_clk_simple_probe(struct platform_device *pdev,
}
devm_pm_runtime_enable(&pdev->dev);
/*
* Do a pm_runtime_resume_and_get() to workaround a possible
* deadlock between clk_register() and the genpd framework.
*/
r = pm_runtime_resume_and_get(&pdev->dev);
if (r)
return r;
if (mcd->need_runtime_pm) {
devm_pm_runtime_enable(&pdev->dev);
/*
* Do a pm_runtime_resume_and_get() to workaround a possible
* deadlock between clk_register() and the genpd framework.
*/
r = pm_runtime_resume_and_get(&pdev->dev);
if (r)
return r;
}
/* Calculate how many clk_hw_onecell_data entries to allocate */
num_clks = mcd->num_clks + mcd->num_composite_clks;
@ -585,7 +587,8 @@ static int __mtk_clk_simple_probe(struct platform_device *pdev,
goto unregister_clks;
}
pm_runtime_put(&pdev->dev);
if (mcd->need_runtime_pm)
pm_runtime_put(&pdev->dev);
return r;
@ -618,7 +621,8 @@ free_base:
if (mcd->shared_io && base)
iounmap(base);
pm_runtime_put(&pdev->dev);
if (mcd->need_runtime_pm)
pm_runtime_put(&pdev->dev);
return r;
}

View File

@ -237,6 +237,8 @@ struct mtk_clk_desc {
int (*clk_notifier_func)(struct device *dev, struct clk *clk);
unsigned int mfg_clk_idx;
bool need_runtime_pm;
};
int mtk_clk_pdev_probe(struct platform_device *pdev);

View File

@ -70,7 +70,6 @@ static struct clk_alpha_pll ipq_pll_stromer_plus = {
static const struct alpha_pll_config ipq5018_pll_config = {
.l = 0x2a,
.config_ctl_val = 0x4001075b,
.config_ctl_hi_val = 0x304,
.main_output_mask = BIT(0),
.aux_output_mask = BIT(1),
.early_output_mask = BIT(3),
@ -84,7 +83,6 @@ static const struct alpha_pll_config ipq5018_pll_config = {
static const struct alpha_pll_config ipq5332_pll_config = {
.l = 0x2d,
.config_ctl_val = 0x4001075b,
.config_ctl_hi_val = 0x304,
.main_output_mask = BIT(0),
.aux_output_mask = BIT(1),
.early_output_mask = BIT(3),

View File

@ -2574,6 +2574,9 @@ static int clk_alpha_pll_stromer_plus_set_rate(struct clk_hw *hw,
regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll),
a >> ALPHA_BITWIDTH);
regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
PLL_ALPHA_EN, PLL_ALPHA_EN);
regmap_write(pll->clkr.regmap, PLL_MODE(pll), PLL_BYPASSNL);
/* Wait five micro seconds or more */

View File

@ -2140,9 +2140,10 @@ static struct clk_rcg2 pcnoc_bfdcd_clk_src = {
static struct clk_branch gcc_crypto_axi_clk = {
.halt_reg = 0x16010,
.halt_check = BRANCH_HALT_VOTED,
.clkr = {
.enable_reg = 0x16010,
.enable_mask = BIT(0),
.enable_reg = 0xb004,
.enable_mask = BIT(15),
.hw.init = &(const struct clk_init_data) {
.name = "gcc_crypto_axi_clk",
.parent_hws = (const struct clk_hw *[]) {
@ -2156,9 +2157,10 @@ static struct clk_branch gcc_crypto_axi_clk = {
static struct clk_branch gcc_crypto_ahb_clk = {
.halt_reg = 0x16014,
.halt_check = BRANCH_HALT_VOTED,
.clkr = {
.enable_reg = 0x16014,
.enable_mask = BIT(0),
.enable_reg = 0xb004,
.enable_mask = BIT(16),
.hw.init = &(const struct clk_init_data) {
.name = "gcc_crypto_ahb_clk",
.parent_hws = (const struct clk_hw *[]) {

View File

@ -100,8 +100,8 @@ static struct clk_alpha_pll gpll6 = {
.enable_mask = BIT(6),
.hw.init = &(struct clk_init_data){
.name = "gpll6",
.parent_hws = (const struct clk_hw*[]){
&gpll0.clkr.hw,
.parent_data = &(const struct clk_parent_data){
.fw_name = "bi_tcxo",
},
.num_parents = 1,
.ops = &clk_alpha_pll_fixed_fabia_ops,
@ -124,7 +124,7 @@ static struct clk_alpha_pll_postdiv gpll6_out_even = {
.clkr.hw.init = &(struct clk_init_data){
.name = "gpll6_out_even",
.parent_hws = (const struct clk_hw*[]){
&gpll0.clkr.hw,
&gpll6.clkr.hw,
},
.num_parents = 1,
.ops = &clk_alpha_pll_postdiv_fabia_ops,
@ -139,8 +139,8 @@ static struct clk_alpha_pll gpll7 = {
.enable_mask = BIT(7),
.hw.init = &(struct clk_init_data){
.name = "gpll7",
.parent_hws = (const struct clk_hw*[]){
&gpll0.clkr.hw,
.parent_data = &(const struct clk_parent_data){
.fw_name = "bi_tcxo",
},
.num_parents = 1,
.ops = &clk_alpha_pll_fixed_fabia_ops,

View File

@ -132,7 +132,6 @@ static int sunxi_ccu_probe(struct sunxi_ccu *ccu, struct device *dev,
for (i = 0; i < desc->hw_clks->num ; i++) {
struct clk_hw *hw = desc->hw_clks->hws[i];
struct ccu_common *common = hw_to_ccu_common(hw);
const char *name;
if (!hw)
@ -147,14 +146,21 @@ static int sunxi_ccu_probe(struct sunxi_ccu *ccu, struct device *dev,
pr_err("Couldn't register clock %d - %s\n", i, name);
goto err_clk_unreg;
}
}
if (common->max_rate)
clk_hw_set_rate_range(hw, common->min_rate,
common->max_rate);
for (i = 0; i < desc->num_ccu_clks; i++) {
struct ccu_common *cclk = desc->ccu_clks[i];
if (!cclk)
continue;
if (cclk->max_rate)
clk_hw_set_rate_range(&cclk->hw, cclk->min_rate,
cclk->max_rate);
else
WARN(common->min_rate,
WARN(cclk->min_rate,
"No max_rate, ignoring min_rate of clock %d - %s\n",
i, name);
i, clk_hw_get_name(&cclk->hw));
}
ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get,

View File

@ -15,7 +15,6 @@
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/timer.h>
#include <linux/completion.h>
#include <linux/platform_device.h>
#include <linux/io.h>
@ -32,7 +31,6 @@ struct i2c_pnx_mif {
int ret; /* Return value */
int mode; /* Interface mode */
struct completion complete; /* I/O completion */
struct timer_list timer; /* Timeout */
u8 * buf; /* Data buffer */
int len; /* Length of data buffer */
int order; /* RX Bytes to order via TX */
@ -117,24 +115,6 @@ static inline int wait_reset(struct i2c_pnx_algo_data *data)
return (timeout <= 0);
}
static inline void i2c_pnx_arm_timer(struct i2c_pnx_algo_data *alg_data)
{
struct timer_list *timer = &alg_data->mif.timer;
unsigned long expires = msecs_to_jiffies(alg_data->timeout);
if (expires <= 1)
expires = 2;
del_timer_sync(timer);
dev_dbg(&alg_data->adapter.dev, "Timer armed at %lu plus %lu jiffies.\n",
jiffies, expires);
timer->expires = jiffies + expires;
add_timer(timer);
}
/**
* i2c_pnx_start - start a device
* @slave_addr: slave address
@ -259,8 +239,6 @@ static int i2c_pnx_master_xmit(struct i2c_pnx_algo_data *alg_data)
~(mcntrl_afie | mcntrl_naie | mcntrl_drmie),
I2C_REG_CTL(alg_data));
del_timer_sync(&alg_data->mif.timer);
dev_dbg(&alg_data->adapter.dev,
"%s(): Waking up xfer routine.\n",
__func__);
@ -276,8 +254,6 @@ static int i2c_pnx_master_xmit(struct i2c_pnx_algo_data *alg_data)
~(mcntrl_afie | mcntrl_naie | mcntrl_drmie),
I2C_REG_CTL(alg_data));
/* Stop timer. */
del_timer_sync(&alg_data->mif.timer);
dev_dbg(&alg_data->adapter.dev,
"%s(): Waking up xfer routine after zero-xfer.\n",
__func__);
@ -364,8 +340,6 @@ static int i2c_pnx_master_rcv(struct i2c_pnx_algo_data *alg_data)
mcntrl_drmie | mcntrl_daie);
iowrite32(ctl, I2C_REG_CTL(alg_data));
/* Kill timer. */
del_timer_sync(&alg_data->mif.timer);
complete(&alg_data->mif.complete);
}
}
@ -400,8 +374,6 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
mcntrl_drmie);
iowrite32(ctl, I2C_REG_CTL(alg_data));
/* Stop timer, to prevent timeout. */
del_timer_sync(&alg_data->mif.timer);
complete(&alg_data->mif.complete);
} else if (stat & mstatus_nai) {
/* Slave did not acknowledge, generate a STOP */
@ -419,8 +391,6 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
/* Our return value. */
alg_data->mif.ret = -EIO;
/* Stop timer, to prevent timeout. */
del_timer_sync(&alg_data->mif.timer);
complete(&alg_data->mif.complete);
} else {
/*
@ -453,9 +423,8 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
static void i2c_pnx_timeout(struct timer_list *t)
static void i2c_pnx_timeout(struct i2c_pnx_algo_data *alg_data)
{
struct i2c_pnx_algo_data *alg_data = from_timer(alg_data, t, mif.timer);
u32 ctl;
dev_err(&alg_data->adapter.dev,
@ -472,7 +441,6 @@ static void i2c_pnx_timeout(struct timer_list *t)
iowrite32(ctl, I2C_REG_CTL(alg_data));
wait_reset(alg_data);
alg_data->mif.ret = -EIO;
complete(&alg_data->mif.complete);
}
static inline void bus_reset_if_active(struct i2c_pnx_algo_data *alg_data)
@ -514,6 +482,7 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
struct i2c_msg *pmsg;
int rc = 0, completed = 0, i;
struct i2c_pnx_algo_data *alg_data = adap->algo_data;
unsigned long time_left;
u32 stat;
dev_dbg(&alg_data->adapter.dev,
@ -548,7 +517,6 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
dev_dbg(&alg_data->adapter.dev, "%s(): mode %d, %d bytes\n",
__func__, alg_data->mif.mode, alg_data->mif.len);
i2c_pnx_arm_timer(alg_data);
/* initialize the completion var */
init_completion(&alg_data->mif.complete);
@ -564,7 +532,10 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
break;
/* Wait for completion */
wait_for_completion(&alg_data->mif.complete);
time_left = wait_for_completion_timeout(&alg_data->mif.complete,
alg_data->timeout);
if (time_left == 0)
i2c_pnx_timeout(alg_data);
if (!(rc = alg_data->mif.ret))
completed++;
@ -653,7 +624,10 @@ static int i2c_pnx_probe(struct platform_device *pdev)
alg_data->adapter.algo_data = alg_data;
alg_data->adapter.nr = pdev->id;
alg_data->timeout = I2C_PNX_TIMEOUT_DEFAULT;
alg_data->timeout = msecs_to_jiffies(I2C_PNX_TIMEOUT_DEFAULT);
if (alg_data->timeout <= 1)
alg_data->timeout = 2;
#ifdef CONFIG_OF
alg_data->adapter.dev.of_node = of_node_get(pdev->dev.of_node);
if (pdev->dev.of_node) {
@ -673,8 +647,6 @@ static int i2c_pnx_probe(struct platform_device *pdev)
if (IS_ERR(alg_data->clk))
return PTR_ERR(alg_data->clk);
timer_setup(&alg_data->mif.timer, i2c_pnx_timeout, 0);
snprintf(alg_data->adapter.name, sizeof(alg_data->adapter.name),
"%s", pdev->name);

View File

@ -167,7 +167,7 @@ u64 riscv_pmu_event_update(struct perf_event *event)
unsigned long cmask;
u64 oldval, delta;
if (!rvpmu->ctr_read)
if (!rvpmu->ctr_read || (hwc->state & PERF_HES_UPTODATE))
return 0;
cmask = riscv_pmu_ctr_get_width_mask(event);

View File

@ -20,6 +20,7 @@
#include <linux/cpu_pm.h>
#include <linux/sched/clock.h>
#include <linux/soc/andes/irq.h>
#include <linux/workqueue.h>
#include <asm/errata_list.h>
#include <asm/sbi.h>
@ -114,7 +115,7 @@ struct sbi_pmu_event_data {
};
};
static const struct sbi_pmu_event_data pmu_hw_event_map[] = {
static struct sbi_pmu_event_data pmu_hw_event_map[] = {
[PERF_COUNT_HW_CPU_CYCLES] = {.hw_gen_event = {
SBI_PMU_HW_CPU_CYCLES,
SBI_PMU_EVENT_TYPE_HW, 0}},
@ -148,7 +149,7 @@ static const struct sbi_pmu_event_data pmu_hw_event_map[] = {
};
#define C(x) PERF_COUNT_HW_CACHE_##x
static const struct sbi_pmu_event_data pmu_cache_event_map[PERF_COUNT_HW_CACHE_MAX]
static struct sbi_pmu_event_data pmu_cache_event_map[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
[C(L1D)] = {
@ -293,6 +294,34 @@ static const struct sbi_pmu_event_data pmu_cache_event_map[PERF_COUNT_HW_CACHE_M
},
};
static void pmu_sbi_check_event(struct sbi_pmu_event_data *edata)
{
struct sbiret ret;
ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_CFG_MATCH,
0, cmask, 0, edata->event_idx, 0, 0);
if (!ret.error) {
sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_STOP,
ret.value, 0x1, SBI_PMU_STOP_FLAG_RESET, 0, 0, 0);
} else if (ret.error == SBI_ERR_NOT_SUPPORTED) {
/* This event cannot be monitored by any counter */
edata->event_idx = -EINVAL;
}
}
static void pmu_sbi_check_std_events(struct work_struct *work)
{
for (int i = 0; i < ARRAY_SIZE(pmu_hw_event_map); i++)
pmu_sbi_check_event(&pmu_hw_event_map[i]);
for (int i = 0; i < ARRAY_SIZE(pmu_cache_event_map); i++)
for (int j = 0; j < ARRAY_SIZE(pmu_cache_event_map[i]); j++)
for (int k = 0; k < ARRAY_SIZE(pmu_cache_event_map[i][j]); k++)
pmu_sbi_check_event(&pmu_cache_event_map[i][j][k]);
}
static DECLARE_WORK(check_std_events_work, pmu_sbi_check_std_events);
static int pmu_sbi_ctr_get_width(int idx)
{
return pmu_ctr_list[idx].width;
@ -478,6 +507,12 @@ static int pmu_sbi_event_map(struct perf_event *event, u64 *econfig)
u64 raw_config_val;
int ret;
/*
* Ensure we are finished checking standard hardware events for
* validity before allowing userspace to configure any events.
*/
flush_work(&check_std_events_work);
switch (type) {
case PERF_TYPE_HARDWARE:
if (config >= PERF_COUNT_HW_MAX)
@ -762,7 +797,7 @@ static inline void pmu_sbi_stop_all(struct riscv_pmu *pmu)
* which may include counters that are not enabled yet.
*/
sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_STOP,
0, pmu->cmask, 0, 0, 0, 0);
0, pmu->cmask, SBI_PMU_STOP_FLAG_RESET, 0, 0, 0);
}
static inline void pmu_sbi_stop_hw_ctrs(struct riscv_pmu *pmu)
@ -1359,6 +1394,9 @@ static int pmu_sbi_device_probe(struct platform_device *pdev)
if (ret)
goto out_unregister;
/* Asynchronously check which standard events are available */
schedule_work(&check_std_events_work);
return 0;
out_unregister:

View File

@ -245,35 +245,6 @@ static int cifs_init_request(struct netfs_io_request *rreq, struct file *file)
return 0;
}
/*
* Expand the size of a readahead to the size of the rsize, if at least as
* large as a page, allowing for the possibility that rsize is not pow-2
* aligned.
*/
static void cifs_expand_readahead(struct netfs_io_request *rreq)
{
unsigned int rsize = rreq->rsize;
loff_t misalignment, i_size = i_size_read(rreq->inode);
if (rsize < PAGE_SIZE)
return;
if (rsize < INT_MAX)
rsize = roundup_pow_of_two(rsize);
else
rsize = ((unsigned int)INT_MAX + 1) / 2;
misalignment = rreq->start & (rsize - 1);
if (misalignment) {
rreq->start -= misalignment;
rreq->len += misalignment;
}
rreq->len = round_up(rreq->len, rsize);
if (rreq->start < i_size && rreq->len > i_size - rreq->start)
rreq->len = i_size - rreq->start;
}
/*
* Completion of a request operation.
*/
@ -329,7 +300,6 @@ const struct netfs_request_ops cifs_req_ops = {
.init_request = cifs_init_request,
.free_request = cifs_free_request,
.free_subrequest = cifs_free_subrequest,
.expand_readahead = cifs_expand_readahead,
.clamp_length = cifs_clamp_length,
.issue_read = cifs_req_issue_read,
.done = cifs_rreq_done,

0
include/sound/aes67.h Normal file
View File

View File

@ -427,8 +427,6 @@ static void __init remove_securityfs_measurement_lists(struct dentry **lists)
kfree(lists);
}
securityfs_measurement_list_count = 0;
}
static int __init create_securityfs_measurement_lists(void)
@ -625,6 +623,7 @@ out:
securityfs_remove(binary_runtime_measurements);
remove_securityfs_measurement_lists(ascii_securityfs_measurement_lists);
remove_securityfs_measurement_lists(binary_securityfs_measurement_lists);
securityfs_measurement_list_count = 0;
securityfs_remove(ima_symlink);
securityfs_remove(ima_dir);

63
sound/drivers/aes67.c Normal file
View File

@ -0,0 +1,63 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AES67 soundcard
*
* */
#include <linux/init.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/interval.h>
/* Definistion of AES67 Virtual SoundCard */
struct aes67 {
struct snd_card *card;
};
/* Destructor */
static int snd_aes67_free(struct aes67 *virtcard)
{
return 0;
}
/* Component Free */
static int snd_aes67_dev_free(struct snd_device *device)
{
return snd_aes67_free(device->device_data);
}
/* Constructor */
static int snd_aes67_create(struct snd_card *card, struct aes67 **rvirtcard)
{
struct aes67 *virtcard;
int err;
static const struct snd_device_ops ops = {
.dev_free = snd_aes67_free,
};
*rvirtcard = NULL:
/* Setup Connection Handlers */
/* allocate memory for virt card */
virtcard = kzalloc(sizeof(*virtcard), GFP_KERNEL);
if (virtcard == NULL)
return -ENOMEM;
virtcard->card = card;
/* COnnect to things */
/* Build Sound Device */
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, virtcard, &ops);
if (err < 0) {
snd_aes67_free(virtcard);
return err;
}
*rvirtcard = virtcard;
return 0;
}

View File

@ -5,8 +5,5 @@ GIT_VERSION := $(shell git describe --always --long --dirty || echo "unknown")
export GIT_VERSION
endif
ifeq ($(CFLAGS),)
CFLAGS := -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(selfdir)/powerpc/include $(CFLAGS)
CFLAGS := -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(selfdir)/powerpc/include $(USERCFLAGS)
export CFLAGS
endif

View File

@ -51,7 +51,7 @@ static int vector_sigreturn(int data, void (*handler)(int, siginfo_t *, void *))
asm(".option push \n\
.option arch, +v \n\
vsetivli x0, 1, e32, ta, ma \n\
vsetivli x0, 1, e32, m1, ta, ma \n\
vmv.s.x v0, %1 \n\
# Generate SIGSEGV \n\
lw a0, 0(x0) \n\